D03.111 (Melanoma in situ of right upper eyelid, including canthus) compared with D03.121 (Melanoma in situ of left upper eyelid, including canthus), from the official CMS tabular data. D03.111 and D03.121 code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. D03.111 and D03.121 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| D03.111Melanoma in situ of right upper eyelid, including canthus | D03.121Melanoma in situ of left upper eyelid, including canthus | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Melanoma in situ of right upper eyelid, including canthus is a billable ICD-10-CM diagnosis code (D03.111). | Melanoma in situ of left upper eyelid, including canthus is a billable ICD-10-CM diagnosis code (D03.121). |
| Includes | Bowen's disease erythroplasia grade III intraepithelial neoplasia Queyrat's erythroplasia | Bowen's disease erythroplasia grade III intraepithelial neoplasia Queyrat's erythroplasia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources